Best Home Remedies for Your Garden: Chaffinch

This year they are a real nuisance in the garden: small green, black or reddish aphids that collect on young leaves, shoots and shoot tips. They suck plant sap, weaken plant tissue, and can even transmit disease. It becomes especially troublesome when they multiply explosively and this can happen very quickly in warm weather right now.

But don’t worry: you don’t have to resort to chemicals. There are many natural home remedies you can use to fight aphids effectively and environmentally friendly, even without synthetic sprays. In this blog post we will show you which remedies really help, how to make them, use them and what you should pay attention to.

Why aphids are a problem

Aphids suck sugary plant sap from young shoots and leaves. The affected parts of the plant may then curl, yellow or become deformed. Aphids also secrete honeydew, a sticky substance that promotes the proliferation of fungi such as black sooty mold and attracts ants, which «milk» the lice and even defend them from predators. All in all: pretty bad for your plants.

Particularly at risk are especially roses, nasturtiums, beans, hibiscus, wild apple trees, young fruit trees and many ornamental plants.

1. Simply dry it – the first step for mild infestations

For a light infestation, a strong jet of water is often sufficient. Lice are removed mechanically, which damages them and makes it difficult for them to return to the plant.

Here’s how:

• In the morning, use a shower head or spray attachment
• Also specifically spray the undersides of leaves and shoot areas
• Repeat every 1-2 days until the lice are no longer visible

Benefit: Quick, easy, and protects other beneficial insects, so it’s a good place to start if you only find a few aphids.

2. Soft soap solution – the classic from grandmother’s times

A pure soft soap solution (=containing potassium) is a gentle but effective method. It blocks the airways of aphids and causes them to suffocate.

Ingredients for 1 litre:

• 1-2 teaspoons soft soap (no fragrances or additives)
• Optional: 1 teaspoon canola oil as adhesive

Application:

• Pour into a spray bottle
• Spray in the morning or evening on the affected parts of the plant, including the underside of the leaves
• Rinse with clean water after 1-2 days
• Repeat the application every 2-3 days until the infestation disappears

Shelf life: You must prepare the solution fresh because it loses its effectiveness over time.

3. Nettle decoction: nature’s free help

Nettles have a deterrent effect on aphids, especially in decoction. But: not to be confused with the stronger-smelling nettle dung.

Here’s how you prepare the broth:

• 500 g fresh nettles (young seedless plants)
• Pour 5 liters of cold water over it
• Leave to infuse for 24 hours – not anymore!otherwise fermentation will begin

Application:

• Drain through a sieve or cloth
• Pour undiluted into a spray bottle or backpack syringe
• Spray on the plant in the morning or evening (not in strong sun)

Tip: beer is It can be kept for 3-4 days in the refrigerator, but it is better to consume it fresh if possible.

4. Neem Oil – natural active ingredient with long-term effects

Neem oil comes from the seeds of the neem tree and contains azadirachtin, which specifically disrupts the hormonal control of aphids. They stop eating and die without harming other insects.

Mixing ratio for 1 liter of spray solution:

• 1 liter of water
• 5–10 ml of kaltgepresstes Neemöl
• 1 teaspoon soft soap as an emulsifier (so that the oil combines with the water)

How to use it:

• Pour into a spray bottle and shake well
• Spray the plant while it is wet, including the undersides of the leaves
• Use early in the morning or evening, not in the sun or rain

Supply sources: You can purchase neem oil at garden centers, health food stores, pharmacies or online. Make sure you use pure and natural neem oil without additives.

5. Onion and Garlic Broth: Deterrent and Plant-Friendly

Onion and garlic are natural «olfactory barriers» against aphids and can also be used as sprays.

Here’s how you prepare the broth:

• Coarsely chop 1 onion + 2 cloves of garlic
• Bring 1 liter of water to the boil and leave to macerate for 30 minutes
• Filter and leave to cool

Application:

• Pour into a spray bottle and spray pure on the plant
• The same applies here too: use in the morning or evening, not in the sun
• The preparation lasts about 3 days in the refrigerator

Effect: Repels aphids thanks to the intense odor and protects the plant.

6. Repel aphids with plant energy

Some plants have a deterrent effect on aphids or deliberately attract them and therefore distract them. So a mixed culture in the garden is worth it!

Suitable companion plants:

• Nasturtium: attracts lice, making it ideal as a “sacrificial plant”
• Lavender, thyme, sage: scare away aphids with their scent
• Onion and garlic plants: they not only act as a deterrent in the soil, but also as neighboring plants

These plants can be integrated wonderfully into the bed or balcony planter without much effort.

7. Promote beneficial insects: for a sustainable balance in the garden

The best measure against aphids is a live garden with many natural opponents, but this is more of a long-term strategy to prevent aphid infestation in the garden.

These beneficial insects eat aphids:

• Ladybugs (including larvae!)
• Lacewings
• Hoverflies
• Ohrwürmer

Here’s how to create living spaces:

• Allow wild corners in the garden
• Set up insect hotels
• Promote the diversity of flowering plants
• Do not use pesticides

The more beneficial insects you have in your garden, the less often you will have problems with aphids.

What should you leave alone

• Alcohol sprays: can damage plants, especially in the sun
• Chemical disinfestation: also destroys beneficial insects
• Excessive nitrogen fertilization: This makes the plants “soft” and makes them a feast for lice.

Conclusion: fight aphids naturally

Aphids are annoying, but can be easily controlled without harming nature. And the best thing: Most of the products cost almost nothing and can be made yourself in just a few steps.

Good luck and happy gardening! 🙂